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VLA observations of the Herbig-Haro 1-2 system
Rodriguez, Luis F.; Ho, Paul T. P.; Torrelles, Jose M.; Curiel, Salvador; Canto, Jorge
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Universidad Nacional Autonoma de Mexico, Coyoacan, Mexico), AB(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Universidad Nacional Autonoma de Mexico, Coyoacan, Mexico), AC(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA), AD(Andalucia, Instituto de Astrofisica, Granada, Spain), AE(Universidad Nacional Autonoma de Mexico, Coyoacan, Mexico)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 352, April 1, 1990, p. 645-653. Research supported by SEUI and Junta de Andalucia. (ApJ Homepage)
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NASA/STI Keywords:
Herbig-Haro Objects, Nebulae, Pre-Main Sequence Stars, Radio Emission, Radio Sources (Astronomy), Very Large Array (Vla), Angular Resolution, Water Masers
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A detailed VLA multiconfiguration and multifrequency study of Herbig-Haro (HH) objects 1 and 2 and their central source of energy is presented. It is found that the central radio source is elongated with its major axis pointing to the brightest condensations in HH 1 and HH 2. The flux and angular size of the central source have a frequency dependence consistent with that expected for a bipolar, confined jet. The ionized outflow observed in association with the central source appears to be insufficient to drive HH 1 and 2. The dominant radio condensation in HH 1 and HH 2 and four additional sources in the field are detected.

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